When I was growing up, I used to watch 'Power Rangers' and 'Ninja Turtles.' It seemed like every movie had someone doing martial arts in it, so I would go around punching and kicking trees.

Track and field is tougher physically, but golf is tougher mentally.

I want to see where I measure up against everyone in the world and everyone who has ever competed in the sport, and there's that innate sense of wanting to challenge myself. I'm competitive in all aspects.

That is when the crowd really lifted me. That last 600 meters I was not running with my own legs. It was incredible.

The desire definitely comes from within. There are only a few people who make it to this level and those are the ones who have that innate desire.

Coping with injuries is always difficult for athletes because all we want to do is, basically, to have our best performances unhindered.